Today, most large internet companies run 10,000 or more experiments a year to improve things like user engagement, ad conversions, and the like. In comparison, how many experiments are done each year in the US studying the effectiveness of the elementary math curriculum? Is this satisfactory, considering the US has some 90,000 primary schools, and 33 million elementary students? Arguably, the present status quo in testing and innovation is simply immoral. After all, it's not

A 2,000 Year Old Remedy On Friday, December 13, 1799 George Washington awoke with a severe sore throat. He was visited the next day by three doctors, who quickly prescribed bloodletting: The withdrawal of blood to restore "humoral balance". Within hours they removed half his blood. By evening, George Washington was dead. What I find most shocking about Mr. Washington's untimely demise is how a practice so harmful to patients remained the most common surgical procedure for alm